Cotek SD3500-112 Hardwire 3500 Watt 12 Volt Pure Sine Wave Inverter With 35 Amp Transfer Switch

Canadian PowerSKU: SD3500-112 HARDWIRE

Sale price$1,154 Regular price$1,459 Save $305
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The Cotek SD3500-112┬áHardwire is the perfect inverter for all your needs! With a wide input DC voltage range it can be used for all major user applications, and accommodate extreme conditions like high voltage alternators or high altitude. 

With a power saving mode and selectable output AC voltage the SD2300-112 Hardwire is versatile, safe, reliable, and comes with a built in user-friendly interface. This inverter will last, and has full protection on the battery, input, and output, ensuring that you will be able to use the SD3500-112 Hardwire for years to come.


  • On Mode @ Save Mode: 1.4 Amps
  • On Mode @ No Load Mode: < 2.9 Amps
  • Fuse: 40 Amps x 12
  • AC Range: 100/110/115/120 Volts AC +-12.5%
  • Frequency Selectable: 50/60 Hz
  • Synchronous Frequency: 47-57 / 53-63
  • Circuit Breaker: 35 Amps
  • Transfer Switch: Optional STS Mode: < 4ms | Standard ATS: Inverter to utility AC: 8~10ms
  • Safety Standards: Certified UL 458
  • EMC Standards: Certified FCC Class B
  • LED Indicator: Input voltage level, output load, and faulty status
  • Remote Control: CR-6, CR-8, and CR-10
  • Cooling: Load and thermal control fan.
  • Dual GFCI outlets and terminal block for hardwiring
  • Parallel redundancy design for power expansion
  • Multiple industrial applications that create power systems
  • Automatic master mechanism to eliminate single point
  • Failure and optimize reliability
  • Built-in ATS and AC circuit breaker
  • Optional STS Module, transfer time less than 4ms
  • RS-232 communication
  • Input and Output fully isolation
  • Output voltage and power saving mode selectable
  • Input protection: Reverse Polarity (Fuse) / Under voltage/Over
  • Output protection: Short Circuit/Overload/Over Temperature/Over Voltage
  • BAT.Low Alarm +-3%: 10.5 Volts DC
  • BAT.Low Shut-down +-3%: 10 Volts DC
  • BAT.Low Restart +-3%: 12.5 Volts DC
  • BAT.High Alarm +-3%: 15.5 Volts DC
  • BAT.High Shut-down +-3%: 16 Volts DC
  • BAT.High Restart +-3%: 15 Volts DC
  • Safety Standards Certified: UL, FCC, CE, E13
  • Dimensions (WxHxD): 11.4" x 5.1" x 19.5" (283mm x 128.4mm x 496mm)
  • Weight: 22 lbs (10 kgs)
  • 5 year manufacturer's warranty.


dc volts 12 Volts DC
efficiency 0.9
features Built-In Transfer Switch
input voltage 12 Volts
no load power consumption At 12 Volts DC
output frequency 50/60 Hz
output voltage (At rated Volts DC): 100/110/115/120 Volts AC +-3% Selectable
power (For 3 Seconds): 4500 Watts (Peak)
rated power 3500 Watts
storage temperature -40 degrees to 158 degrees F (-40 degrees to 70 degrees C)
surge power (For < .2 Seconds): 6000 Watts
total harmonic distortion < 3% (At rated / Volts DC, linear load)
voltage range 10~16 Volts DC
wattage 3500 Watts
waveform Pure Sine Wave
working temp -4 degrees to 140 degrees F (-20 degrees to 60 degrees C)

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